Manifold for dishwashing machines



Jam. 2 .ma 1,0,612

' W. J. LYNCH.

MANIFOLD FoR DnsHwAsHlNG MACHINES.

F|LED MAY l, 1920. 2 sHEETs-sr-EET l Jan. 2, 1923.. 1,440,612

W. J. LYNCH. l i

MANIFoLD FoR DlsHwAsHlNe MACHINES.

Fl LED MAY 1 1920. 2 SHEETS-SHEET 2 Z'vz verz Zw;

g//tar 'n e351 Patented dan.. 2, 1923.

naar earner errata.

WLLIME d'. LYNCH, 0l? BUFFELG, m YORK.

MANEIFGLD F013; DISHWASHING MACHINES.

Application led `Iaay 1, 1920. Serial to. @782ml To all whom t may concern:

Be it known t-hat l, WILLiAMJ. LrNCH, a citizen of the United States, residing 1n Buffalo, in the county of Erie and State of New and the like of the character shown in my co-pending application No. 328,998, filed O'ctober 7, 191

It is the object of this invention to provide a manifold of this character whereby the spray, which is directed upon the dishes passmg through the machine, may be conveniently regulated and thereby control the force of the spray desired for di'erent articles. g

Another object is to provide a manifold which can be thoroughly cleanedfrom time 'to time without the necessity of shutting down the machine.

A still further object of the invention is to provide a device of this character which is simple and compact in construction and which is applicable for spraying dishes from above or below.

1n the accompanying drawings:

Figure 1 is a top' plan view of my` improved manifold. Figures 2 and 3 are transverse sections on the'correspondinglynumybered lines in Fig. 1.1'Fi re 4 is a-horizontal section on line l -4, ig. 2. Figure 5 is a longitudinal section on line 545,- Fig. 1.*

Figure 6 is a transverse section on line 6-6, Fig. 1. Figure 7 is a fragmentary horizontal section on line 7-7, Fig. 6.

Similar characters of reference refer to like parts throughout `the several views.

The main frame of this improved manifold or spraying device preferably comprises a box or tank 10 of rectangular forml open at its top and provided with a water chamber 11. The top of the box is closed by a suitable cover 12 bolted or otherwise secured thereto, a gasket 13 being interposed between the opposing edges of the cover and tank to make the same water tight. The opposite side Walls of the tank are provided with inlet openings or ports 14 to each of which is connected ajsupply or intake pipe 15 communieating with the usual pump for forcing vthe water to this tank for spraying purposes.

The inlet ports 14 are provided with suitable check valves 16 controlled rby, the pressure of the water admitted to the box, fso that when water is conducted 'through one port, its checkvalve is opened by the pressure of the water, while the other valve is closed, it being understood that either one 'pump or the other is connected to the manifold at a time. 'llhe intake pipes 15 also serve as "a means vto support the/tank in` a` horizontal position above or below the dishes vbeing washed. i

The cover 12 of the tank 10 is provided' with a pluralityof circular openings or ports 17 through which the water for sprayingl purposes is discharged, the size of the spray being regulated by valves 18, one of which is arranged in each port. These valves are also of circular form and are of slightly smaller diameter than the corresponding ports, the water being discharged between the face of each valve and the corresponding p ort. These ports are preferably arranged in parallel rows across the cover and the valves therein are of the mushroom type, each having a conical or outwardly diverging head 19 and' a depending stem 20. The lower end s of these stems are rigidly secured to a rack, or supporting frame 21 of skeleton-like form arranged horizontally in the waterchamber V11 of the box and adapted to be adjusted vertically in said chamber and thereby eect 'a corresponding movement of these valves and force of the spray. The stems ofthe valves may belsecurely fastened to the supporting frame in any suitable manner,V but preferably by providing the lower endof each stem with a reduced portion '22 which engages an opening 23 in said supporting frame. The shoulder 24 formed by the reduced portion 21 engages the corresponding upper side of the supporting frame, while that part of the reduced portion'I extending through the opening 23 is provided with a collar or washer 25 held against the underside of the supporting frame by a cotter pin 26 or other suitable means. .The upper end of each valve stem may be guided in a bridge or cross piece 27 formed integral with the cover land extending diametrically across the respective port, as shown in Fig. 1.

The means for adjusting the valie sup- Carried by the cover 12 are a plurality of adjusting units which comprise adjusting bolts or screws 28, each of which is provided with a4 screw-threaded lhead portion 29 at its upper end. Each of these bolts is prevented from vmovement vertically relatively to the cover, and for` this purpose is provided with a collar orI washer `3O held against the underside of said cover by a cotter pin 31I or other suitable means, the

shoulder formed by the screw threaded head bearing against the upper side of the cover. vThe supporting frame is provided with a plurality of guide members or adjusting sleeves 32 corresponding to the number of bolts 28, `and each is .provided with a screw- H-threadedj bore for receiving thev screw shown in the drawings, there are'four of these adjusting units, arranged equidistant from each other to permit a more uniform 'adjustment of the valve )supporting frame.

This valvesupporting frame is also yieldingly retained in its operative position at its opposite-ends and midway thereof, so as to effect a more uniform and accurate movement of the several valves mounted thereon when they are being adjusted for a certain breadth of spray. The means for thus yieldingly retaining the valve frame comprise a plurality of coil springs 36 interposedbetween the upper side of said frameand the lower side of the box cover 12. To prevent these springs from4 becoming displaced, the lower end of each vspring -surrounds a stud or pin 37 in the valve frame',V while its upper end is seatedl in a recess or socket 38 formed in a` plug 39 screwed into the cover.

Means are provided for bodily raisingv the valve supporting frame to a position in which the several valves will clear'the upper edges of their respective ports, and thereby permit of flushing the box of any particles of refuse which are removed from the disles I durin the washing thereof, -andprevent any c ogging of the spraying systemv which mightotherwise impair itsoperation. The preferred mechanism, whereby this -bodily movement of the valve frameis eected is constructed as follows 40 representsya horizontal rotatable shaft Y warranged centrally and lengthwise of the tank 10 Vand jOurnaIedinb'earings 41 .at op-f posite ends thereof. Y Mounted Y at opposite ramera ends of this shaft and within the water chamber 11 ofthe tank are cams or eccentrics 42, each of which engages a yoke 43 provided in the respective end of he valve supporting frame. Upon rotating this shaft the frame 21, throughthe medium of the eccentrics 42, is` raised uniformly and,si multaneously causes the valves to be lifted and flushes the tank of any refuse particles deposited therein. ln this event, the sleeves 32 of the valve adjusting units serve as guides for the valve frame, and the springs 36 cause the latter to return'to its normal operative position when the shaftis moved to its former position. F or conveniently r0- tating this shaft, a suitable hand lever 44 is fixed to the exposed end of the shaft 40. It will be understood from theforegoing that when it is desired to produce a spray from this improved manifold to be directed upwardly in a substantially vertical column with maximum force, the valves are set in the position shown in the drawings in which the upper faces of the valves are just below' the upper end of the respective ports. However, should it be desired to produce a spray covering a larger area with a diminished force the valve frame is adjusted accordingly so that the valves are moved farther outward, and the upper faces ofthe valves are either flush with the upper end of Athe ports, orv extend beyond the same, which last position results in a coarse spray of inverted conical form covering a maximum-area with a minimum of force.

- rlhe intermediate portions of the valve supporting frame are provided with offsets 45 to prevent the same from interfering with the actuating shaft 40` during. the raising and lowering of the valve' frame.

fn assembling tthis improved manifold,

the cover and associated parts including the valve supporting frame, the valves, adjusting units and yieldable retainers are assembled as a unit, and applied to the tank 10 in which is journaled the shaft on which the eccentrics are -mounted' vIn order` to permit the yokes of the valve ,frames to lity over their eccentrics-in applying .the cover to the box,they are cut open on their undersides as shown at 46. This permits of ready assemblage of the parts without in any way impairing the function of theyokes.

I claim as my invention LA manifold vof the character described comprising a tank of boxlike form communieating with water under pressure and provided in one of its sides with outlet ports, a valve supportingframe arran ed within said tank and movable .toward an 'from said ports, valves carried by said frame and extending' into said ports, and adjusting screws extendin v through one wall of said tank and engaglng said valve frame.

2. A manifold'of` thecharacter described associa comprising a tank communicating with Water under pressure, a cover therefor prol' vided with outlet ports, a supporting frame adjustably mounted on said cover and disposed Within said tank, and valves carried by said frame and extending into said ports.

3. A manifold of the characterv described comprising a tank communicating with Y Water under pressure, a cover therefor provided with outlet ports, a supporting frame guided on said cover, valves carried by said frame and extending into` said ports, and means for adjusting said frame vertically toward and from said cover whereby said valves are simultaneously adjusted to'control the discharge of Water through said I plurality of adjusting screws mounted onsaid cover and operatively connected to said frame. A

5. A manifold of the'characterdescribed comprising a tank communicating With Water under pressure and providedin one of its sides with outlet ports, a valve sup-' porting frame arranged Within said tank, valves carried by said frame and extending into said ports, means for adjusting said frame whereby said valvesare adjusted to control the discharge of Vwater through said ports, and means independent of said adjusting means for actuating said valve frame to simultaneously lift said valves above the discharge end of said ports. i

6. A manifold of the character described comprising a tank communicating With water under pressure and provided with outlet ports, a vertically movable valve supporting :trame yieldingly guided in said tank and provided at its opposite ends with yokes,

valves carried bysaid frame and extending into said portsya rotatable shaft journaled in said tank, and eccentrics mounted l'on said shaft'andengaging the yokes or said frame.

7. A manifold ot the character described' comprising a tank communicating with Water under pressure and' provided with WlILLIAM J. LYNCH. 

